diff --git a/content/acetate.html b/content/acetate.html
index 22b80d99a1f6806e8b822950560a3d9d2ba04072..73f72c6fe816a2f0d8f1fab5cbe18f7c46d00f32 100644
--- a/content/acetate.html
+++ b/content/acetate.html
@@ -36,7 +36,7 @@ monocarboxylate transporter and <a href="./target_aquaporins.html">aquaporins</a
 across cell membranes.</p> 
 
 <p><a href="./pic/acetate-acetylCoA.svg"><img src="./pic/acetate-acetylCoA.svg" 
-  alt="acetate to acetyl-CoA conversion by ACH" 
+  alt="acetate to acetyl-CoA conversion by ACH" title="acetate to acetyl-CoA conversion by ACH" 
   style="padding:6px 0px 0px 6px; width:350px; float:right;" /></a>
 </p>
 
@@ -74,9 +74,9 @@ acetate (<a href="https://doi.org/10.1016/0969-8051(94)90178-3">Kihlberg et al.,
 
 <div class="images">
 <a href="./pic/1-11C-acetate.svg"><img src="./pic/1-11C-acetate.svg" height="80" 
- alt="[1-11C]Acetate" style="padding:0px 10px 0px 0px;" /></a>
+ alt="[1-11C]Acetate" title="[1-11C]Acetate" style="padding:0px 10px 0px 0px;" /></a>
 <a href="./pic/2-11C-acetate.svg"><img src="./pic/2-11C-acetate.svg" height="80" 
- alt="[2-11C]Acetate" style="padding:0px 10px 0px 0px;" /></a>
+ alt="[2-11C]Acetate" title="[2-11C]Acetate" style="padding:0px 10px 0px 0px;" /></a>
 <p>[1-<sup>11</sup>C]Acetate and [2-<sup>11</sup>C]acetate, labelled into C-1 and C-2 position, 
 respectively.</p> 
 </div>
@@ -116,7 +116,8 @@ of astrocytic metabolism in the brain
 <h2><a name="18F"><sup>18</sup>F-labelled acetate</a></h2>
 
 <p><a href="./pic/18F-fluoroacetate.svg"><img src="./pic/18F-fluoroacetate.svg" 
-  alt="18F-fluoroacetate" style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
+  alt="18F-fluoroacetate" title="18F-fluoroacetate" 
+  style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
 </p>
 
 <p>The hydrogen atoms of the methyl group can be replaced with <sup>18</sup>F to produce
@@ -163,22 +164,6 @@ it with ethanol to increase lipophilicity. The resulting proradiotracer [<sup>18
 the brain rapidly and was converted to TCA cycle metabolites
 (<a href="https://doi.org/10.1016/j.nucmedbio.2008.11.006">Mori et al., 2009</a>).</p>
 
-<!-- Moved into its own page
-
-<p><a href="./pic/2-18F-fluoropropionate.svg"><img src="./pic/2-18F-fluoropropionate.svg" 
-  alt="18F-labelled propionate" style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
-</p>
-
-<h3><a name="FPA">2-[<sup>18</sup>F]fluoropropionate</a></h3>
-
-<p>2-[<sup>18</sup>F]fluoropropionate is another SCFA radiopharmaceutical that mimics acetate, 
-and could be used in tumour imaging because of increased fatty acid synthesis
-(<a href="https://doi.org/10.2967/jnumed.109.064212">Pillarsetty et al., 2009</a>;
-<a href="https://doi.org/10.1177/1536012118821032">Zhao et al., 2019</a>;
-Zhang et al., <a href="https://doi.org/10.1007/s11307-019-01346-1">2019</a> and
-<a href="https://doi.org/10.1007/s11307-021-01608-x">2021</a>).</p>
--->
-
 
 <br>
 <h2>See also:</h2>
diff --git a/content/analysis_11c-pbr28.html b/content/analysis_11c-pbr28.html
index f05e5d6daf67184ed759032b92f778baf8a9fac9..149b4b94c4519dd280de11da2f12622bfc85a537 100644
--- a/content/analysis_11c-pbr28.html
+++ b/content/analysis_11c-pbr28.html
@@ -12,7 +12,7 @@ tags:
 
 <h1>Quantification of [<sup>11</sup>C]PBR28 PET studies</h1>
 
-<p><a href="./pic/11C-PBR28.svg"><img src="./pic/11C-PBR28.svg" alt="11C-PBR28" 
+<p><a href="./pic/11C-PBR28.svg"><img src="./pic/11C-PBR28.svg" alt="11C-PBR28" title="11C-PBR28" 
   style="padding:10px 0px 0px 10px; width:150px; float:right;" /></a>
 </p>
 
diff --git a/content/analysis_11c-pib.html b/content/analysis_11c-pib.html
index fe78b3f402f890fc0a38b956e7f6525ea4ff1a51..fe13d387b6a144460ef4538cd4e2201499629a60 100644
--- a/content/analysis_11c-pib.html
+++ b/content/analysis_11c-pib.html
@@ -13,7 +13,7 @@ tags:
 <h1>Analysis of [<sup>11</sup>C]PIB PET data</h1>
 
 <div>
-<p><a href="./pic/11C-PIB.svg"><img src="./pic/11C-PIB.svg" alt="11C-PIB" 
+<p><a href="./pic/11C-PIB.svg"><img src="./pic/11C-PIB.svg" alt="11C-PIB" title="11C-PIB" 
   style="padding:10px 0px 0px 10px; width:200px; float:right;" /></a>
 </p>
 
diff --git a/content/analysis_11c-pk11195.html b/content/analysis_11c-pk11195.html
index a92e0bf7a80398afe2108b610072da2118d45f24..cb3e343b46fd7e856227d188257ba26e73f7c203 100644
--- a/content/analysis_11c-pk11195.html
+++ b/content/analysis_11c-pk11195.html
@@ -14,7 +14,7 @@ tags:
 
 <div>
 
-<p><a href="./pic/11C-PK11195.svg"><img src="./pic/11C-PK11195.svg" alt="11C-PK11195" 
+<p><a href="./pic/11C-PK11195.svg"><img src="./pic/11C-PK11195.svg" alt="11C-PK11195" title="11C-PK11195" 
   style="padding:10px 0px 0px 10px; width:150px; float:right;" /></a>
 </p>
 
diff --git a/content/analysis_11c-smw139.html b/content/analysis_11c-smw139.html
index c2f82906423e199eadf75ac54757546d8e742f75..828ab8d6eee2a1d8cd1f421b386d7644db33bde0 100644
--- a/content/analysis_11c-smw139.html
+++ b/content/analysis_11c-smw139.html
@@ -13,7 +13,7 @@ tags:
 
 
 <p><a href="./pic/11C-SMW139.svg">
-<img src="./pic/11C-SMW139.svg" alt="[C-11]SMW139" 
+<img src="./pic/11C-SMW139.svg" alt="[C-11]SMW139" title="[C-11]SMW139" 
      style="padding:10px 0px 0px 10px; width:200px; float:right;" />
 </a></p>
 
diff --git a/content/analysis_11c-ucb-j.html b/content/analysis_11c-ucb-j.html
index 62234c3d9bd7c4c592a9b7fff48ea744342a503f..aa5af36a0bac792b3eb84895e44edf4dd6d04333 100644
--- a/content/analysis_11c-ucb-j.html
+++ b/content/analysis_11c-ucb-j.html
@@ -13,7 +13,7 @@ tags:
 
 <p><a name="fig1"></a>
 <a href="./pic/(C-11)UCB-J.svg">
-<img src="./pic/(C-11)UCB-J.svg" alt="[C-11]UCB-J" 
+<img src="./pic/(C-11)UCB-J.svg" alt="[C-11]UCB-J" title="[C-11]UCB-J" 
      style="padding:10px 0px 0px 10px; width:180px; float:right;" />
 </a></p>
 
diff --git a/content/analysis_18f-ef5.html b/content/analysis_18f-ef5.html
index f85bf03dd1a4b610826c4769f1f3ce92caa5c213..f99e1b91f2b53906081dd49d022abf2d225426d6 100644
--- a/content/analysis_18f-ef5.html
+++ b/content/analysis_18f-ef5.html
@@ -7,7 +7,7 @@ tags:
   - Hypoxia
 ---
 
-<p><a href="./pic/18F-EF5.svg"><img src="./pic/18F-EF5.svg" alt="F-18 labelled EF5" 
+<p><a href="./pic/18F-EF5.svg"><img src="./pic/18F-EF5.svg" alt="F-18 labelled EF5" title="F-18 labelled EF5" 
      style="padding:10px 0px 0px 10px; width:180px; float:right;" /></a></p>
 
 <h1>[<sup>18</sup>F]EF5 PET</h1>
diff --git a/content/analysis_18f-fbpa.html b/content/analysis_18f-fbpa.html
index 62bf7970b51bc37271e3f0645baee03210252f5c..d3bd9f6ecb1651a87961b045ce72917d06124547 100644
--- a/content/analysis_18f-fbpa.html
+++ b/content/analysis_18f-fbpa.html
@@ -33,9 +33,9 @@ The effective dose from [<sup>18</sup>F]FBPA PET study is similar than that of
 
 <figure style="border: 1px solid #000;">
   <a href="./pic/L-BPA.svg">
-  <img style="width:250px; margin: 0.5em;" src="./pic/L-BPA.svg" alt="L-BPA"></a>
+  <img style="width:250px; margin: 0.5em;" src="./pic/L-BPA.svg" alt="L-BPA" title="L-BPA"></a>
   <a href="./pic/(F-18)FBPA.svg">
-  <img style="width:250px; margin: 0.5em;" src="./pic/(F-18)FBPA.svg" alt="FBPA"></a>
+  <img style="width:250px; margin: 0.5em;" src="./pic/(F-18)FBPA.svg" alt="FBPA" title="FBPA"></a>
   <figcaption style="margin: 0.5em;"><strong>L-BPA and [<sup>18</sup>F]FBPA</strong> 
   </figcaption>
 </figure>
@@ -228,10 +228,6 @@ the <sup>10</sup>B in organs (normal tissues) by simply multiplying the relative
 [<sup>18</sup>F]FBPA per g tissue by the therapeutic dose (g) of L-BPA, neglecting possible
 saturation effects from the much higher mass of the L-BPA dose.</p>
 
-<--
-
--->
-
 <br>
 <h2>See also:</h2>
 
diff --git a/content/analysis_18f-fda.html b/content/analysis_18f-fda.html
index d40d56b68ef13bee8328f59bbffd4b6ea3002bbd..c6674982e62aa98a9ef9254ab7237a66a92cb0f2 100644
--- a/content/analysis_18f-fda.html
+++ b/content/analysis_18f-fda.html
@@ -17,9 +17,11 @@ tags:
 
 <figure style="border: 1px solid #000;">
   <a href="./pic/norepinephrine.svg">
-  <img style="width:220px; margin: 0.5em;" src="./pic/norepinephrine.svg" alt="Norepinephrine"></a>
+  <img style="width:220px; margin: 0.5em;" src="./pic/norepinephrine.svg"
+    alt="Norepinephrine" title="Norepinephrine"></a>
   <a href="./pic/6-18F-FDA.svg">
-  <img style="width:220px; margin: 0.5em;" src="./pic/6-18F-FDA.svg" alt="6-[F-18]-FDA"></a>
+  <img style="width:220px; margin: 0.5em;" src="./pic/6-18F-FDA.svg"
+    alt="6-[F-18]-FDA" title="6-[F-18]-FDA"></a>
   <figcaption style="margin: 0.5em;">Norepinephrine (noradrenaline) and 
     6-[<sup>18</sup>F]fluorodopamine (6-[<sup>18</sup>F]FDA)
   </figcaption>
diff --git a/content/analysis_18f-fdg.html b/content/analysis_18f-fdg.html
index 8dda7f62d3a228189b4474c942873b2f4decd97d..5b68d5e272eba16c48379766a5ce9c22e7b46d26 100644
--- a/content/analysis_18f-fdg.html
+++ b/content/analysis_18f-fdg.html
@@ -19,8 +19,8 @@ tags:
 <h1>Quantification of metabolic rate of glucose uptake with [<sup>18</sup>F]FDG</h1>
 
 <p><a href="./pic/(F-18)fdg.svg">
-<img src="./pic/(F-18)fdg.svg" alt="2-[F-18]fluoro-2-deoxy-D-glucose" 
-     style="padding:10px 0px 0px 10px; width:200px; float:right;" />
+<img src="./pic/(F-18)fdg.svg" style="padding:10px 0px 0px 10px; width:200px; float:right;"
+     alt="2-[F-18]fluoro-2-deoxy-D-glucose" title="2-[F-18]fluoro-2-deoxy-D-glucose" />
 </a></p>
 
 <p>[<sup>18</sup>F]2-fluoro-2-deoxy-D-glucose ([<sup>18</sup>F]FDG) is a <a href="./glucose.html"
diff --git a/content/analysis_18f-fdopa.html b/content/analysis_18f-fdopa.html
index 3127535f200656c09dd7cca4a80d5c3434a22747..ef16ff25d60d74917c67f20abb099cb1931385b5 100644
--- a/content/analysis_18f-fdopa.html
+++ b/content/analysis_18f-fdopa.html
@@ -32,9 +32,9 @@ and [<sup>18</sup>F]FPDOPA
 
 <figure style="border: 1px solid #000;">
   <a href="./pic/L-DOPA.svg">
-  <img style="width:250px; margin: 0.5em;" src="./pic/L-DOPA.svg" alt="L-DOPA"></a>
+  <img style="width:250px; margin: 0.5em;" src="./pic/L-DOPA.svg" alt="L-DOPA" title="L-DOPA"></a>
   <a href="./pic/6-(F-18)FDOPA.svg">
-  <img style="width:250px; margin: 0.5em;" src="./pic/6-(F-18)FDOPA.svg" alt="FDOPA"></a>
+  <img style="width:250px; margin: 0.5em;" src="./pic/6-(F-18)FDOPA.svg" alt="FDOPA" title="FDOPA"></a>
   <figcaption style="margin: 0.5em;"><strong>L-DOPA and 6-[<sup>18</sup>F]FDOPA</strong> 
   </figcaption>
 </figure>
diff --git a/content/analysis_18f-fgln.html b/content/analysis_18f-fgln.html
index f7004b9cc0ae258bb1199878cf68ea44d969cf0f..af2fb75f97627e1c27c9f9f58030d153e2b6d856 100644
--- a/content/analysis_18f-fgln.html
+++ b/content/analysis_18f-fgln.html
@@ -12,7 +12,7 @@ tags:
 <h1>(2<em>S</em>,4<em>R</em>)-4-[<sup>18</sup>F]fluoroglutamine</h1>
 
 <div><a href="./pic/2S4R-4-18F-FGln.png"><img src="./pic/2S4R-4-18F-FGln.png" 
-     alt="(2S,4R)-4-[18F]fluoroglutamine" 
+     alt="(2S,4R)-4-[18F]fluoroglutamine" title="(2S,4R)-4-[18F]fluoroglutamine" 
      style="padding:10px 0px 0px 10px; width:200px; float:right;" /></a></div>
 
 <p><a href="./glutamine.html">L-Glutamine</a> (Gln) has many important functions in 
diff --git a/content/analysis_18f-fpa.html b/content/analysis_18f-fpa.html
index ccf4d6e1219649c65f79d45a4ed629bcecb22002..dad0b116f38256c1e743685e64a1dcfda5ebf1b9 100644
--- a/content/analysis_18f-fpa.html
+++ b/content/analysis_18f-fpa.html
@@ -13,7 +13,8 @@ tags:
 
 
 <p><a href="./pic/2-18F-fluoropropionate.svg"><img src="./pic/2-18F-fluoropropionate.svg" 
-  alt="18F-labelled propionate" style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
+  alt="18F-labelled propionate" title="18F-labelled propionate" 
+  style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
 </p>
 
 <p>2-[<sup>18</sup>F]fluoropropionate (2-[<sup>18</sup>F]fluoropropionic acid, [<sup>18</sup>F]FPA) 
diff --git a/content/analysis_18f-fpatpp.html b/content/analysis_18f-fpatpp.html
index 843f0a57c54b02fe16ace9fdcd1cfc97e7605e63..312ec78557bde647ffbedf169acd8088f593b7d8 100644
--- a/content/analysis_18f-fpatpp.html
+++ b/content/analysis_18f-fpatpp.html
@@ -8,7 +8,7 @@ tags:
   - Cannabinoids
 ---
 
-<div><a href="./pic/18F-FPATPP.png"><img src="./pic/18F-FPATPP.png" alt="[18F]FPATPP" 
+<div><a href="./pic/18F-FPATPP.png"><img src="./pic/18F-FPATPP.png" alt="[18F]FPATPP" title="[18F]FPATPP" 
      style="padding:10px 0px 0px 10px; width:260px; float:right;" /></a></div>
 
 <h1>[<sup>18</sup>F]FPATPP PET</h1>
diff --git a/content/analysis_18f-fpia.html b/content/analysis_18f-fpia.html
index ee9c7d435b163f80c6c33a097d6574b5b347cd13..51fe36726fed767f62c4e17c56e0c18a82fdd820 100644
--- a/content/analysis_18f-fpia.html
+++ b/content/analysis_18f-fpia.html
@@ -11,7 +11,8 @@ tags:
 <h1>[<sup>18</sup>F]FPIA PET</h1>
 
 <p><a href="./pic/18F-FPIA.svg"><img src="./pic/18F-FPIA.svg" 
-  alt="18F-labelled pivalate" style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
+  alt="18F-labelled pivalate" title="18F-labelled pivalate"
+  style="padding:6px 0px 0px 6px; width:100px; float:right;" /></a>
 </p>
 
 <p>[<sup>18</sup>F]Fluoro-pivalic acid ([<sup>18</sup>F]FPIA) is based on a non-natural 
diff --git a/content/analysis_18f-mfbg.html b/content/analysis_18f-mfbg.html
index 55a8f3a0ee98844821ee8b61056338c45cbfe43c..4c7c6ced20a43aa1a8c0e781bfadc8e15fef9e65 100644
--- a/content/analysis_18f-mfbg.html
+++ b/content/analysis_18f-mfbg.html
@@ -33,11 +33,14 @@ is safer, allows same-day imaging, and better image quality than what is possibl
 
 <figure style="border: 1px solid #000;">
   <a href="./pic/norepinephrine.svg">
-  <img style="width:160px; margin: 0.5em;" src="./pic/norepinephrine.svg" alt="Noradrenaline"></a>
+  <img style="width:160px; margin: 0.5em;" src="./pic/norepinephrine.svg"
+    alt="Noradrenaline" title="Noradrenaline"></a>
   <a href="./pic/123I-MIBG.svg">
-  <img style="width:200px; margin: 0.5em;" src="./pic/123I-MIBG.svg" alt="[I-123]MIBG"></a>
+  <img style="width:200px; margin: 0.5em;" src="./pic/123I-MIBG.svg"
+    alt="[I-123]MIBG" title="[I-123]MIBG"></a>
   <a href="./pic/18F-MFBG.svg">
-  <img style="width:200px; margin: 0.5em;" src="./pic/18F-MFBG.svg" alt="[F-18]MFBG"></a>
+  <img style="width:200px; margin: 0.5em;" src="./pic/18F-MFBG.svg" 
+    alt="[F-18]MFBG" title="[F-18]MFBG"></a>
   <figcaption style="margin: 0.5em;">Noradrenaline, [<sup>123</sup>I]MIBG, and [<sup>18</sup>F]MFBG
   </figcaption>
 </figure>
diff --git a/content/analysis_18f-psma-1007.html b/content/analysis_18f-psma-1007.html
index b5916a48b9e3df2335639b51da94a1268b895c36..34352c830e8e9c1168435531cea1c0a6f793663e 100644
--- a/content/analysis_18f-psma-1007.html
+++ b/content/analysis_18f-psma-1007.html
@@ -9,7 +9,8 @@ tags:
 ---
 
 
-<div><a href="./pic/18F-PSMA-1007.svg"><img src="./pic/18F-PSMA-1007.svg" alt="[18F]PSMA-1007" 
+<div><a href="./pic/18F-PSMA-1007.svg"><img src="./pic/18F-PSMA-1007.svg"
+     alt="[18F]PSMA-1007" title="[18F]PSMA-1007" 
      style="padding:10px 0px 0px 10px; width:300px; float:right;" /></a></div>
 
 
@@ -117,7 +118,6 @@ was 0.05&plusmn;0.02 min<sup>-1</sup> in prostate cancer lesions;
 0.09&plusmn;0.08, 0.15&plusmn;0.08, and 0.04&plusmn;0.02 in bone metastases;
 median <em>k<sub>3</sub></em> was 35-fold higher than <em>k<sub>4</sub></em> in prostate cancer
 lesions (<a href="https://doi.org/10.1007/s00259-019-04569-0">Sachpekidis et al., 2020</a>).
-
 </p>
 
 <h3>Mass effect</h3>
diff --git a/content/bnct.html b/content/bnct.html
index 67cfaf47e608f86aab0284bbddc4398873830390..6198769f0f7297bbf4445cacc8bcadd421b182a6 100644
--- a/content/bnct.html
+++ b/content/bnct.html
@@ -47,7 +47,7 @@ this highly useful technique. Accelerator-based neutron sources are being develo
 
 <div>
 <a href="./pic/L-BPA.svg">
-<img src="./pic/L-BPA.svg" alt="L-BPA" 
+<img src="./pic/L-BPA.svg" alt="L-BPA" title="L-BPA" 
      style="padding:8px 0px 0px 8px; width:180px; float:right;" /></a>
 
 <p>Numerous boron carriers have been developed and studied, and two, 
diff --git a/content/citrate.html b/content/citrate.html
index 840bd2398c83c1cf39c4a4db53f8cbb1efcf8b50..8c8040a7f61c813954a2a72b96b78ccc4836be3a 100644
--- a/content/citrate.html
+++ b/content/citrate.html
@@ -10,7 +10,7 @@ tags:
 
 <p>
 <a href="./pic/citrate.svg">
-<img src="./pic/citrate.svg" alt="citrate ion" 
+<img src="./pic/citrate.svg" alt="citrate ion" title="citrate ion" 
      style="padding:10px 0px 0px 10px; width:180px; float:right;" />
 </a>
 </p>
diff --git a/content/glucose.html b/content/glucose.html
index 29615b219ef682bbc192d34419e1427296051e96..777922fb1bcbf07dd9b42878c7517057a14a883e 100644
--- a/content/glucose.html
+++ b/content/glucose.html
@@ -16,7 +16,7 @@ tags:
 
 <p>
 <a href="./pic/D-glucose.svg">
-<img src="./pic/D-glucose.svg" alt="D-Glucose" 
+<img src="./pic/D-glucose.svg" alt="D-Glucose" title="D-Glucose" 
      style="padding:10px 0px 0px 10px; width:200px; float:right;" />
 </a>
 </p>
diff --git a/content/ketones.html b/content/ketones.html
index 596fbf05dad10cd49488499782c76e3854071fad..5c717ef0572bc95ea49276b7ddc8a23d53418ef0 100644
--- a/content/ketones.html
+++ b/content/ketones.html
@@ -12,21 +12,21 @@ tags:
 <p>Ketone bodies include acetoacetate (AcAc), D-&beta;-hydroxybutyrate (&beta;-HB, BHB), and
 acetone. L-&beta;-hydroxybutyrate is not used in energy metabolism but excreted in the urine.<p>
 
-<table class="borderless" style="width: 95%;">
+<table class="borderless" id="borderlesstable" style="width: 95%;">
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/acetone.svg">
-    <img style="margin: 0.5em;" src="./pic/acetone.svg" alt="Acetone"></a>
+    <img style="margin: 0.5em;" src="./pic/acetone.svg" alt="Acetone" title="Acetone"></a>
     <figcaption style="margin: 0.5em;">Acetone</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/acac.svg">
-    <img style="margin: 0.5em;" src="./pic/acac.svg" alt="Acetoacetate"></a>
+    <img style="margin: 0.5em;" src="./pic/acac.svg" alt="Acetoacetate" title="Acetoacetate"></a>
     <figcaption style="margin: 0.5em;">Acetoacetate (AcAc)</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/bhb.svg">
-    <img style="margin: 0.5em;" src="./pic/bhb.svg" alt="beta-hydroxybutyrate"></a>
+    <img style="margin: 0.5em;" src="./pic/bhb.svg" alt="beta-hydroxybutyrate" title="beta-hydroxybutyrate"></a>
     <figcaption style="margin: 0.5em;">&beta;-hydroxybutyrate (&beta;-HB)</figcaption>
   </figure></td>
 </tr>
@@ -84,23 +84,24 @@ and &beta;-hydroxybutyrate with <sup>11</sup>C and <sup>18</sup>F, giving
 (3<em>S</em>)-4-[<sup>18</sup>F]fluoro-3-hydroxybutyric acid ([<sup>18</sup>F]FBHB).
 Ketones have also been labelled with <sup>13</sup>C for NMR studies.</p>
 
-<table class="borderless" style="width: 95%;">
+<table class="borderless" id="borderlesstable" style="width: 95%;">
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/1-11C-acetoacetate.svg">
-    <img style="margin: 0.5em;" src="./pic/1-11C-acetoacetate.svg" alt="[1-11C]acetoacetate"></a>
+    <img style="margin: 0.5em;" src="./pic/1-11C-acetoacetate.svg"
+    alt="[1-11C]acetoacetate" title="[1-11C]acetoacetate"></a>
     <figcaption style="margin: 0.5em;">[<sup>11</sup>C]AcAc</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/beta-1-11C-hydroxybutyrate.svg">
     <img style="margin: 0.5em;" src="./pic/beta-1-11C-hydroxybutyrate.svg" 
-         alt="beta-[1-11C]-hydroxybutyrate"></a>
+         alt="beta-[1-11C]-hydroxybutyrate" title="beta-[1-11C]-hydroxybutyrate"></a>
     <figcaption style="margin: 0.5em;">[<sup>11</sup>C]&beta;-HB</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/4-18F-3-hydroxybutyrate.svg">
     <img style="margin: 0.5em;" src="./pic/4-18F-3-hydroxybutyrate.svg" 
-         alt="4-[18F]-3-hydroxybutyrate"></a>
+         alt="4-[18F]-3-hydroxybutyrate" title="4-[18F]-3-hydroxybutyrate"></a>
     <figcaption style="margin: 0.5em;">[<sup>18</sup>F]FBHB</figcaption>
   </figure></td>
 </tr>
diff --git a/content/lactate.html b/content/lactate.html
index 16d76ff81ea22038af1358b14c0be175158b5a95..e7e6ec09ead2f9c0bad9e0300c87a6d13e6c4590 100644
--- a/content/lactate.html
+++ b/content/lactate.html
@@ -47,7 +47,7 @@ mediate metabolic signals through the nervous tissue
 present at physiological pH.</p>
 
 <p><a href="./pic/lactate-pyruvate.svg"><img src="./pic/lactate-pyruvate.svg" 
-  alt="lactate-pyruvate conversion by LDH" 
+  alt="lactate-pyruvate conversion by LDH" title="lactate-pyruvate conversion by LDH" 
   style="padding:6px 0px 0px 6px; width:320px; float:right;" /></a>
 </p>
 
@@ -61,7 +61,7 @@ L-lactate can be concerted back to glucose via gluconeogenesis.
 Kidneys maintain pyruvate/lactate ratio in circulation by converting lactate into pyruvate.</p>
 
 <p><a href="./pic/pyruvate-acetylCoA.svg"><img src="./pic/pyruvate-acetylCoA.svg" 
-  alt="pyruvate to acetyl-CoA conversion by PDH" 
+  alt="pyruvate to acetyl-CoA conversion by PDH" title="pyruvate to acetyl-CoA conversion by PDH" 
   style="padding:6px 0px 0px 6px; width:350px; float:right;" /></a>
 </p>
 
@@ -238,14 +238,17 @@ the TCA cycle.</p>
 
 <div class="images">
 <a href="./pic/L-1-11C-lactate.svg">
-<img src="./pic/L-1-11C-lactate.svg" alt="[C-11]Lactate, labeled into C-1 position"
-     style="padding:0px 20px 0px 0px;" /></a>
+<img src="./pic/L-1-11C-lactate.svg" style="padding:0px 20px 0px 0px;"
+     alt="[C-11]Lactate, labeled into C-1 position"
+     title="[C-11]Lactate, labeled into C-1 position" /></a>
 <a href="./pic/L-3-11C-lactate.svg">
-<img src="./pic/L-3-11C-lactate.svg" alt="[C-11]Lactate, labeled into C-3 position"
-     style="padding:0px 20px 0px 0px;" /></a>
+<img src="./pic/L-3-11C-lactate.svg" style="padding:0px 20px 0px 0px;" 
+     alt="[C-11]Lactate, labeled into C-3 position"
+     title="[C-11]Lactate, labeled into C-3 position" /></a>
 <a href="./pic/18F-S-FL.svg">
-<img src="./pic/18F-S-FL.svg" alt="[F-18]Lactate, labeled into C-3 position"
-     style="padding:0px 20px 0px 0px;" /></a>
+<img src="./pic/18F-S-FL.svg" style="padding:0px 20px 0px 0px;"
+     alt="[F-18]Lactate, labeled into C-3 position" 
+     title="[F-18]Lactate, labeled into C-3 position" /></a>
 <p><strong>Figure 1.</strong> L-1-[<sup>11</sup>C]lactate and L-3-[<sup>11</sup>C]lactate, labelled 
 into C-1 and C-3 position, respectively; [<sup>18</sup>F]<em>S</em>-fluorolactate, labelled into C-3
 position.</p> 
@@ -345,8 +348,7 @@ cells <em>in vitro</em> and tumours <em>in vivo</em>
 (<a href="https://doi.org/10.18632/oncotarget.14705">Van Hée et al., 2017</a>).
 Low levels of radioactivity in bone after 1 h of <sup>18</sup>F]-<em>S</em>-FL administration
 indicates a low level of defluorination of the radiotracer
-(<a href="https://doi.org/10.3390/cancers12061703">Braga et al., 2020</a>).
-</p>
+(<a href="https://doi.org/10.3390/cancers12061703">Braga et al., 2020</a>).</p>
 
 
 <br>
diff --git a/content/pyruvate.html b/content/pyruvate.html
index 08d87ab29e46e955392a72c0dbd53da11d25ad5a..d37ee1662d6a7a2c6ae04b9f947ee0b473483ce6 100644
--- a/content/pyruvate.html
+++ b/content/pyruvate.html
@@ -28,7 +28,7 @@ L-lactate dehydrogenase (LDH).</p>
 
 
 <p><a href="./pic/pyruvate-acetylCoA.svg"><img src="./pic/pyruvate-acetylCoA.svg" 
-  alt="pyruvate to acetyl-CoA conversion by PDH" 
+  alt="pyruvate to acetyl-CoA conversion by PDH" title="pyruvate to acetyl-CoA conversion by PDH" 
   style="padding:6px 0px 0px 6px; width:350px; float:right;" /></a>
 </p>
 
diff --git a/content/scfa.html b/content/scfa.html
index 88e1c21bc10464bfc22066dbe2278381ba3b18bd..343fd888590e2efc2c4c67569f2230ab20b545d0 100644
--- a/content/scfa.html
+++ b/content/scfa.html
@@ -1,7 +1,7 @@
 ---
 title: SCFAs
 author: Vesa Oikonen
-updated_at: 2025-06-04
+updated_at: 2025-06-05
 created_at: 2025-06-02
 tags:
   - Fatty acids
@@ -29,14 +29,14 @@ Zhang et al., <a href="https://doi.org/10.1007/s11307-019-01346-1">2019</a> and
 <a href="https://doi.org/10.1007/s11307-021-01608-x">2021</a>).</p>
 
 <figure style="border: 1px solid #000;">
-  <img style="margin: 0.5em;" src="./pic/scfa_acetate.svg" alt="Acetate (ethanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_propionate.svg" alt="Propionate (propanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_butyrate.svg" alt="Butyrate (butanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_valerate.svg" alt="Valerate (pentanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_isobutyrate.svg" alt="Isobutyrate (2-methylpropanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_2-methylbutyrate.svg" alt="2-Methylbutyrate (2-methylbutanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_isovalerate.svg" alt="Isovalerate (3-methylbutanoate)">
-  <img style="margin: 0.5em;" src="./pic/scfa_pivalate.svg" alt="Pivalate (trimethylacetate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_acetate.svg" alt="Acetate (ethanoate)" title="Acetate (ethanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_propionate.svg" alt="Propionate (propanoate)" title="Propionate (propanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_butyrate.svg" alt="Butyrate (butanoate)" title="Butyrate (butanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_valerate.svg" alt="Valerate (pentanoate)" title="Valerate (pentanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_isobutyrate.svg" alt="Isobutyrate (2-methylpropanoate)" title="Isobutyrate (2-methylpropanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_2-methylbutyrate.svg" alt="2-Methylbutyrate (2-methylbutanoate)" title="2-Methylbutyrate (2-methylbutanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_isovalerate.svg" alt="Isovalerate (3-methylbutanoate)" title="Isovalerate (3-methylbutanoate)">
+  <img style="margin: 0.5em;" src="./pic/scfa_pivalate.svg" alt="Pivalate (trimethylacetate)" title="Pivalate (trimethylacetate)">
 </figure>
 
 <p>SCFAs include also a non-natural substrate pivalate (trimethylacetate), which cannot be oxidized 
diff --git a/content/stylesheets/style.css b/content/stylesheets/style.css
index 5d145c216e9542295f4fe743f0e6f533641a00aa..49c74f066c8d45a244c59cc5c4178d762be857a1 100644
--- a/content/stylesheets/style.css
+++ b/content/stylesheets/style.css
@@ -262,6 +262,10 @@ table.borderless th, tr, td {
   border-collapse: collapse;
   border: 0px;
 }
+#borderlesstable {
+  border-collapse: collapse;
+  border: 0;
+}
 
 table.mask, tr, td {
   border: 1px solid black;
diff --git a/content/target_adenosine.html b/content/target_adenosine.html
index 7eaeafa5236cd842325b91ea39a7c48e43c250c7..2a94b24206ecf07e7fd1ef4cca29fcb92c9acc8b 100644
--- a/content/target_adenosine.html
+++ b/content/target_adenosine.html
@@ -19,7 +19,7 @@ tags:
 <div>
 
 <a href="./pic/adenosine.svg">
-<img src="./pic/adenosine.svg" alt="Adenosine" 
+<img src="./pic/adenosine.svg" alt="Adenosine" title="Adenosine" 
      style="padding:10px 0px 0px 10px; width:160px; float:right;" />
 </a>
 
@@ -103,8 +103,7 @@ radiopharmaceuticals for A<sub>1</sub>R and A<sub>2A</sub>R are routinely used i
 Agonists, including endogenous agonist adenosine, lead to the activation of all AR subtypes, and 
 subsequent regulation by desensitization and trafficking 
 (<a href="https://doi.org/10.1016/j.bbamem.2010.06.007">Mundell and Kelly, 2011</a>).
-In addition to AR agonists and antagonists, also allosteric modulators have been introduced.
-</p>
+In addition to AR agonists and antagonists, also allosteric modulators have been introduced.</p>
 
 
 <h3><a name="a1r">A<sub>1</sub>R</a></h3>
diff --git a/content/target_adrenergic_system.html b/content/target_adrenergic_system.html
index 1d0345dd321bc4bc83b079b3fcf1a428b610c003..3e6cdf484541f9b25b834464f3f7fc11807f81e6 100644
--- a/content/target_adrenergic_system.html
+++ b/content/target_adrenergic_system.html
@@ -25,10 +25,10 @@ as neurohormones from <a href="./organ_adrenal_gland.html">adrenal medulla</a>.
 
 <div class="images">
 <a href="./pic/epinephrine.svg">
-<img src="./pic/epinephrine.svg" alt="Epinephrine/Adrenaline"
+<img src="./pic/epinephrine.svg" alt="Epinephrine/Adrenaline" title="Epinephrine/Adrenaline"
      style="padding:0px 20px 0px 0px;" /></a>
 <a href="./pic/norepinephrine.svg">
-<img src="./pic/norepinephrine.svg" alt="Norepinephrine/Noradrenaline"
+<img src="./pic/norepinephrine.svg" alt="Norepinephrine/Noradrenaline" title="Norepinephrine/Noradrenaline"
      style="padding:0px 20px 0px 0px;" /></a>
 <p>Adrenaline (epinephrine) and noradrenaline (norepinephrine).</p> 
 </div>
@@ -69,24 +69,24 @@ Noradrenaline is metabolized by MAO-A and MAO-B, and COMT.</p>
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/L-phenylalanine.svg">
-    <img style="margin: 0.5em;" src="./pic/L-phenylalanine.svg" alt="L-Phenylalanine"></a>
+    <img style="margin: 0.5em;" src="./pic/L-phenylalanine.svg" alt="L-Phenylalanine" title="L-Phenylalanine"></a>
     <figcaption style="margin: 0.5em;">L-Phenylalanine</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/L-tyrosine.svg">
-    <img style="margin: 0.5em;" src="./pic/L-tyrosine.svg" alt="L-Tyrosine"></a>
+    <img style="margin: 0.5em;" src="./pic/L-tyrosine.svg" alt="L-Tyrosine" title="L-Tyrosine"></a>
     <figcaption style="margin: 0.5em;">L-Tyrosine</figcaption>
   </figure></td>
 </tr>
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/L-DOPA.svg">
-    <img style="margin: 0.5em;" src="./pic/L-DOPA.svg" alt="L-DOPA"></a>
+    <img style="margin: 0.5em;" src="./pic/L-DOPA.svg" alt="L-DOPA" title="L-DOPA"></a>
     <figcaption style="margin: 0.5em;">L-DOPA</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/dopamine.svg">
-    <img style="margin: 0.5em;" src="./pic/dopamine.svg" alt="Dopamine"></a>
+    <img style="margin: 0.5em;" src="./pic/dopamine.svg" alt="Dopamine" title="Dopamine"></a>
     <figcaption style="margin: 0.5em;">Dopamine</figcaption>
   </figure></td>
 </tr>
diff --git a/content/target_ar.html b/content/target_ar.html
index 4f661b01411e2d289db20d24d574406c10b4f92d..e0fea0ae0adec973a6481a43cb16160c0ca861ac 100644
--- a/content/target_ar.html
+++ b/content/target_ar.html
@@ -13,7 +13,7 @@ tags:
 
 <figure style="float:right;">
   <a href="./pic/testosterone.svg">
-  <img src="./pic/testosterone.svg" alt="Testosterone" style="width:140px;" /></a>
+  <img src="./pic/testosterone.svg" alt="Testosterone" title="Testosterone" style="width:140px;" /></a>
   <figcaption style="margin: 0.5em; font-size: 75%;">Testosterone</figcaption>
 </figure>
 
@@ -45,7 +45,7 @@ SHBG binding also helps in hormone transport into target cells through membrane
 (DHEA), further to androstenedione, and to testosterone
 (<a href="https://doi.org/10.1016/j.mednuc.2015.02.005">Lefebvre-Lac&oelig;uille et al., 2015</a>).
 Testosterone is produced primarily in testicular Leydig cells in men, while in women precursors are 
-biosynthesised in the <a href="./organ_adrenal_gland.html">adrenal cortex</a> and 
+biosynthesized in the <a href="./organ_adrenal_gland.html">adrenal cortex</a> and 
 <a href="./organ_ovary.html">ovaries</a> and converted into testosterone in peripheral tissues. 
 </p>
 
@@ -86,7 +86,7 @@ AR radioligands, such as [<sup>18</sup>F]FDHT
 
 <figure style="float:right;">
   <a href="./pic/18F-FDHT.svg">
-  <img src="./pic/18F-FDHT.svg" alt="[F-18]FDHT" style="width:170px;" /></a>
+  <img src="./pic/18F-FDHT.svg" alt="[F-18]FDHT" title="[F-18]FDHT" style="width:170px;" /></a>
 </figure>
 
 <p>16&beta;-[<sup>18</sup>F]fluoro-5&alpha;-dihydrotestosterone ([<sup>18</sup>F]FDHT) 
diff --git a/content/target_dopamine.html b/content/target_dopamine.html
index 6c113b80cd2c1e832a2df3cc45dbdf7d88ea6c31..a72b9633f61033cae78862a1de27fb49d7f54a0f 100644
--- a/content/target_dopamine.html
+++ b/content/target_dopamine.html
@@ -90,9 +90,9 @@ Dopamine is packaged into synaptic vesicles by vesicular monoamine transporter 2
 
 <figure style="border: 1px solid #000;">
   <a href="./pic/dopamine.svg">
-  <img style="width:200px; margin: 0.5em;" src="./pic/dopamine.svg" alt="Dopamine"></a>
+  <img style="width:200px; margin: 0.5em;" src="./pic/dopamine.svg" alt="Dopamine" title="Dopamine"></a>
   <a href="./pic/L-DOPA.svg">
-  <img style="width:250px; margin: 0.5em;" src="./pic/L-DOPA.svg" alt="L-DOPA"></a>
+  <img style="width:250px; margin: 0.5em;" src="./pic/L-DOPA.svg" alt="L-DOPA" title="L-DOPA"></a>
   <figcaption style="margin: 0.5em;">Dopamine and L-DOPA</figcaption>
 </figure>
 
diff --git a/content/target_sv2.html b/content/target_sv2.html
index 8acb4dcd140a06d972c1a1e2d9f6faac44f79a73..9c224dd52242d146a3aea83368b0d3cc3f9f2ecb 100644
--- a/content/target_sv2.html
+++ b/content/target_sv2.html
@@ -92,12 +92,12 @@ levetiracetam. SV2A modulates epileptogenesis via GABAergic, but not glutamaterg
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/levetiracetam.svg">
-    <img style="margin: 0.5em;" src="./pic/levetiracetam.svg" alt="Levetiracetam"></a>
+    <img style="margin: 0.5em;" src="./pic/levetiracetam.svg" alt="Levetiracetam" title="Levetiracetam"></a>
     <figcaption style="margin: 0.5em;">Levetiracetam</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/brivaracetam.svg">
-    <img style="margin: 0.5em;" src="./pic/brivaracetam.svg" alt="Brivaracetam"></a>
+    <img style="margin: 0.5em;" src="./pic/brivaracetam.svg" alt="Brivaracetam" title="Brivaracetam"></a>
     <figcaption style="margin: 0.5em;">Brivaracetam</figcaption>
   </figure></td>
 </tr>
@@ -160,24 +160,24 @@ The specific binding of [<sup>18</sup>F]UCB-H is relatively low, hampering quant
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/UCB-J.svg">
-    <img style="margin: 0.5em;" src="./pic/UCB-J.svg" alt="UCB-J"></a>
+    <img style="margin: 0.5em;" src="./pic/UCB-J.svg" alt="UCB-J" title="UCB-J"></a>
     <figcaption style="margin: 0.5em;">UCB-J</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/UCB-H.svg">
-    <img style="margin: 0.5em;" src="./pic/UCB-H.svg" alt="UCB-H"></a>
+    <img style="margin: 0.5em;" src="./pic/UCB-H.svg" alt="UCB-H" title="UCB-H"></a>
     <figcaption style="margin: 0.5em;">UCB-H</figcaption>
   </figure></td>
 </tr>
 <tr>
   <td><figure style="border: 0px;">
     <a href="./pic/SynVesT-1.svg">
-    <img style="margin: 0.5em;" src="./pic/SynVesT-1.svg" alt="SynVesT-1"></a>
+    <img style="margin: 0.5em;" src="./pic/SynVesT-1.svg" alt="SynVesT-1" title="SynVesT-1"></a>
     <figcaption style="margin: 0.5em;">SynVesT-1, MNI-1126, SDM-8</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
     <a href="./pic/SynVesT-2.svg">
-    <img style="margin: 0.5em;" src="./pic/SynVesT-2.svg" alt="SynVesT-2"></a>
+    <img style="margin: 0.5em;" src="./pic/SynVesT-2.svg" alt="SynVesT-2" title="SynVesT-2"></a>
     <figcaption style="margin: 0.5em;">SynVesT-2, SDM-2</figcaption>
   </figure></td>
 </tr>
@@ -190,11 +190,11 @@ radioligands (<a href="https://doi.org/10.1007/s00259-021-05597-5">Zheng et al.,
 <table class="borderless" style="width: 95%;">
 <tr>
   <td><figure style="border: 0px;">
-    <a href="./pic/UCB-A.svg"><img style="margin: 0.5em;" src="./pic/UCB-A.svg" alt="UCB-A"></a>
+    <a href="./pic/UCB-A.svg"><img style="margin: 0.5em;" src="./pic/UCB-A.svg" alt="UCB-A" title="UCB-A"></a>
     <figcaption style="margin: 0.5em;">UCB-A</figcaption>
   </figure></td>
   <td><figure style="border: 0px;">
-    <a href="./pic/SDM-16.svg"><img style="margin: 0.5em;" src="./pic/SDM-16.svg" alt="SDM-16"></a>
+    <a href="./pic/SDM-16.svg"><img style="margin: 0.5em;" src="./pic/SDM-16.svg" alt="SDM-16" title="SDM-16"></a>
     <figcaption style="margin: 0.5em;">SDM-16</figcaption>
   </figure></td>
 </tr>